JDOM checksum error when installing Tomcat5 on Leopard

[joumon@…]

When I tried installing tomcat5 on Leopard, I had the error below. As described in FAQs, I manually downloaded and placed JDOM in distroot folder, but I still got the same error. It'd be greatly appreciated in advance if someone fixes this bug.

--->  Fetching jdom
--->  Attempting to fetch jdom-1.0.tar.gz from http://www.jdom.org//dist/source/
--->  Attempting to fetch jdom-1.0.tar.gz from http://svn.macports.org/repository/macports/distfiles/jdom
--->  Attempting to fetch jdom-1.0.tar.gz from http://svn.macports.org/repository/macports/distfiles/general/
--->  Attempting to fetch jdom-1.0.tar.gz from http://svn.macports.org/repository/macports/downloads/jdom
Error: Target org.macports.fetch returned: fetch failed
Error: The following dependencies failed to build: jaxen jdom xom saxpath
Error: Status 1 encountered during processing.